(19)

(11)

EP 0 807 363 A1

(12)

(43) Date of publication: 19.11.1997 Bulletin 1997/47 (21) Application number: 96902041.0 (22) Date of filing: 30.01.1996

(51) International Patent Classification (IPC):  G06F 9/ 445( . ) H04W 24/ 02( . ) G06F 13/ 00( . ) (86) International application number: PCT/SE1996/000104 (87) International publication number: WO 1996/024231 (08.08.1996 Gazette 1996/36)

(84) Designated Contracting States: DE ES FR GB IT SE (30) Priority: 30.01.1995 US 19950380794 (71) Applicant: TELEFONAKTIEBOLAGET LM ERICSSON 126 25 Stockholm (SE)	(72) Inventors: DAHLIN, Mats, H kan S-183 41 Täby (SE) ERIKSSON, Mats, Erland S-961 93 Boden (SE) LÖFGREN, Lennart, Nils, Adolf S-590 50 Vikingstad (SE) (74) Representative: Norin, Klas, et al  Telefonaktiebolaget L M Ericsson Patent and Trademark Department 126 25 Stockholm 126 25 Stockholm (SE)